/// <summary>
/// Returns the trigger collection for a particular control.
/// </summary>
public static TriggerCollection GetTriggers(Control control)
{
TriggerCollection collection;
if (!instance.triggerLookup.TryGetValue(control, out collection))
{
collection = new TriggerCollection(control);
instance.triggerLookup[control] = collection;
control.Unloaded += OnControlUnloaded;
}
return(collection);
}
/// <summary>
/// Called when the control property changes. Make sure we set the control property
/// for all the triggers.
/// </summary>
private static void OnControlChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
TriggerCollection collection = d as TriggerCollection;
Control newControl = e.NewValue as Control;
if (collection != null && newControl != null)
{
List <Trigger> triggers = collection.Triggers;
if (triggers != null)
{
foreach (var trigger in triggers)
{
trigger.SetValue(Trigger.ControlProperty, newControl);
}
}
}
}
